1fb7f8973f
Current code uses many different types when dealing with a port of a RDMA device: u8, unsigned int and u32. Switch to u32 to clean up the logic. This allows us to make (at least) the core view consistent and use the same type. Unfortunately not all places can be converted. Many uverbs functions expect port to be u8 so keep those places in order not to break UAPIs. HW/Spec defined values must also not be changed. With the switch to u32 we now can support devices with more than 255 ports. U32_MAX is reserved to make control logic a bit easier to deal with. As a device with U32_MAX ports probably isn't going to happen any time soon this seems like a non issue. When a device with more than 255 ports is created uverbs will report the RDMA device as having 255 ports as this is the max currently supported. The verbs interface is not changed yet because the IBTA spec limits the port size in too many places to be u8 and all applications that relies in verbs won't be able to cope with this change. At this stage, we are extending the interfaces that are using vendor channel solely Once the limitation is lifted mlx5 in switchdev mode will be able to have thousands of SFs created by the device. As the only instance of an RDMA device that reports more than 255 ports will be a representor device and it exposes itself as a RAW Ethernet only device CM/MAD/IPoIB and other ULPs aren't effected by this change and their sysfs/interfaces that are exposes to userspace can remain unchanged. While here cleanup some alignment issues and remove unneeded sanity checks (mainly in rdmavt), Link: https://lore.kernel.org/r/20210301070420.439400-1-leon@kernel.org Signed-off-by: Mark Bloch <mbloch@nvidia.com> Signed-off-by: Leon Romanovsky <leonro@nvidia.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
104 lines
4.7 KiB
C
104 lines
4.7 KiB
C
/* QLogic qedr NIC Driver
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* Copyright (c) 2015-2016 QLogic Corporation
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*
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* This software is available to you under a choice of one of two
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* licenses. You may choose to be licensed under the terms of the GNU
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* General Public License (GPL) Version 2, available from the file
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* COPYING in the main directory of this source tree, or the
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* OpenIB.org BSD license below:
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*
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* Redistribution and use in source and binary forms, with or
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* without modification, are permitted provided that the following
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* conditions are met:
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*
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* - Redistributions of source code must retain the above
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* copyright notice, this list of conditions and the following
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* disclaimer.
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*
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* - Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and /or other materials
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* provided with the distribution.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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#ifndef __QEDR_VERBS_H__
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#define __QEDR_VERBS_H__
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int qedr_query_device(struct ib_device *ibdev,
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struct ib_device_attr *attr, struct ib_udata *udata);
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int qedr_query_port(struct ib_device *ibdev, u32 port,
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struct ib_port_attr *props);
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int qedr_iw_query_gid(struct ib_device *ibdev, u32 port,
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int index, union ib_gid *gid);
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int qedr_query_pkey(struct ib_device *ibdev, u32 port, u16 index, u16 *pkey);
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int qedr_alloc_ucontext(struct ib_ucontext *uctx, struct ib_udata *udata);
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void qedr_dealloc_ucontext(struct ib_ucontext *uctx);
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int qedr_mmap(struct ib_ucontext *ucontext, struct vm_area_struct *vma);
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void qedr_mmap_free(struct rdma_user_mmap_entry *rdma_entry);
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int qedr_alloc_pd(struct ib_pd *pd, struct ib_udata *udata);
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int qedr_dealloc_pd(struct ib_pd *pd, struct ib_udata *udata);
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int qedr_alloc_xrcd(struct ib_xrcd *ibxrcd, struct ib_udata *udata);
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int qedr_dealloc_xrcd(struct ib_xrcd *ibxrcd, struct ib_udata *udata);
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int qedr_create_cq(struct ib_cq *ibcq, const struct ib_cq_init_attr *attr,
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struct ib_udata *udata);
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int qedr_resize_cq(struct ib_cq *, int cqe, struct ib_udata *);
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int qedr_destroy_cq(struct ib_cq *ibcq, struct ib_udata *udata);
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int qedr_arm_cq(struct ib_cq *ibcq, enum ib_cq_notify_flags flags);
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struct ib_qp *qedr_create_qp(struct ib_pd *, struct ib_qp_init_attr *attrs,
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struct ib_udata *);
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int qedr_modify_qp(struct ib_qp *, struct ib_qp_attr *attr,
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int attr_mask, struct ib_udata *udata);
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int qedr_query_qp(struct ib_qp *, struct ib_qp_attr *qp_attr,
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int qp_attr_mask, struct ib_qp_init_attr *);
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int qedr_destroy_qp(struct ib_qp *ibqp, struct ib_udata *udata);
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int qedr_create_srq(struct ib_srq *ibsrq, struct ib_srq_init_attr *attr,
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struct ib_udata *udata);
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int qedr_modify_srq(struct ib_srq *ibsrq, struct ib_srq_attr *attr,
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enum ib_srq_attr_mask attr_mask, struct ib_udata *udata);
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int qedr_query_srq(struct ib_srq *ibsrq, struct ib_srq_attr *attr);
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int qedr_destroy_srq(struct ib_srq *ibsrq, struct ib_udata *udata);
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int qedr_post_srq_recv(struct ib_srq *ibsrq, const struct ib_recv_wr *wr,
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const struct ib_recv_wr **bad_recv_wr);
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int qedr_create_ah(struct ib_ah *ibah, struct rdma_ah_init_attr *init_attr,
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struct ib_udata *udata);
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int qedr_destroy_ah(struct ib_ah *ibah, u32 flags);
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int qedr_dereg_mr(struct ib_mr *ib_mr, struct ib_udata *udata);
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struct ib_mr *qedr_get_dma_mr(struct ib_pd *, int acc);
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struct ib_mr *qedr_reg_user_mr(struct ib_pd *, u64 start, u64 length,
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u64 virt, int acc, struct ib_udata *);
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int qedr_map_mr_sg(struct ib_mr *ibmr, struct scatterlist *sg,
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int sg_nents, unsigned int *sg_offset);
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struct ib_mr *qedr_alloc_mr(struct ib_pd *pd, enum ib_mr_type mr_type,
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u32 max_num_sg);
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int qedr_poll_cq(struct ib_cq *, int num_entries, struct ib_wc *wc);
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int qedr_post_send(struct ib_qp *, const struct ib_send_wr *,
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const struct ib_send_wr **bad_wr);
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int qedr_post_recv(struct ib_qp *, const struct ib_recv_wr *,
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const struct ib_recv_wr **bad_wr);
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int qedr_process_mad(struct ib_device *ibdev, int process_mad_flags,
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u32 port_num, const struct ib_wc *in_wc,
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const struct ib_grh *in_grh, const struct ib_mad *in_mad,
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struct ib_mad *out_mad, size_t *out_mad_size,
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u16 *out_mad_pkey_index);
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int qedr_port_immutable(struct ib_device *ibdev, u32 port_num,
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struct ib_port_immutable *immutable);
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#endif
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